Chair



FIG. 1 is a front and right side perspective view of a chair showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof. 

CLAIM The ornamental design for a chair, as shown. 